15 x Hex head screw ASME B18.2.1 1-1/8"-7x7" Grade 5 Zinc plated 15 x Hex head nut ASME B18.2.2 1-1/8"-7 Grade 5 Zinc plated 30 x Flat washer ASME B18.22.1 or DIN125 1-1/8" or M27 Grade 5 Zinc plated or ST140HV 15 x Hex head screw ASME B18.2.1 1-1/8"-7x7" Grade 8 Zinc plated 15 x Hex head nut ASME B18.2.2 1-1/8"-7 Grade 8 Zinc plated 30 x Flat washer ASME B18.22.1 or DIN125 1-1/8" or M27 Grade 8 Zinc plated or ST140HV